96dbbb3cbe
UE5 writes Saved/running.dat as a "session in progress" marker. If the previous session exited uncleanly (SIGKILL, crash), it lingers, and SN2 pops up an invisible 0×0 Error dialog at next launch that the GameThread blocks on forever — visible only as a black screen with a spinning loader. Wrap the Steam command to clear the marker files before each launch. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
39 lines
1.6 KiB
Nix
39 lines
1.6 KiB
Nix
{ pkgs, ... }:
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{
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# Steam
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programs.steam = {
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enable = true;
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dedicatedServer.openFirewall = true;
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extraCompatPackages = [ pkgs.proton-ge-bin ];
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};
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# Proton Experimental ships an accessibility bridge (xalia) that hangs during
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# game launch when AT-SPI is not running on the host. This host has no AT-SPI,
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# so disable xalia globally to avoid wedging iscriptevaluator.exe.
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environment.sessionVariables.PROTON_USE_XALIA = "0";
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# Subnautica 2 pre-launch wrapper. SN2 (UE5) writes Saved/running.dat as a
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# "currently running" lockfile. If the prior session exited uncleanly (SIGKILL
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# via Steam's Stop button, crash, etc.), the file persists and on next launch
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# SN2 pops up an invisible (0x0-sized) Error dialog ("Your game might not have
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# exited correctly last time...") that the GameThread blocks on forever —
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# observable only as a black screen with a spinning loader. This wrapper
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# removes the stale lockfiles before exec'ing the actual game command.
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# Use as Steam launch option for Subnautica 2:
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# sn2-prelaunch %command%
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environment.systemPackages = [
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(pkgs.writeShellScriptBin "sn2-prelaunch" ''
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saved="/mnt/games/SteamLibrary/steamapps/compatdata/1962700/pfx/drive_c/users/steamuser/AppData/Local/Subnautica2/Saved"
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rm -f "$saved/running.dat" "$saved/beforelobby.dat"
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exec "$@"
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'')
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];
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# Gamescope — micro-compositor for game fullscreen/resolution management.
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# Use as Steam launch option: gamescope -W 2560 -H 1440 -f -- %command%
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programs.gamescope = {
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enable = true;
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capSysNice = true; # Allow gamescope to set realtime scheduling
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};
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}
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